Acquisitions and Disposals Acquisitions and Disposals (Fiscal 2014) (Narrative) (Details) In Thousands, except Share data, unless otherwise specified	3 Months Ended			6 Months Ended			12 Months Ended		3 Months Ended	6 Months Ended			3 Months Ended			3 Months Ended				9 Months Ended		6 Months Ended
	Dec. 31, 2014 USD ($)		Dec. 31, 2013 USD ($)	Dec. 31, 2014 USD ($)		Dec. 31, 2013 USD ($)	Jun. 30, 2014 USD ($)		Sep. 30, 2014 Hain Pure Protein [Member] USD ($)	Dec. 31, 2014 Hain Pure Protein [Member] USD ($)	Jul. 17, 2014 Hain Pure Protein [Member] USD ($)	Jun. 30, 2014 Hain Pure Protein [Member] USD ($)	Jun. 30, 2014 Rudis [Member] USD ($)	Jun. 30, 2014 Rudis [Member] GBP (£)	Apr. 28, 2014 Rudis [Member] USD ($)	Mar. 31, 2015 Tilda [Member] USD ($)	Mar. 31, 2015 Tilda [Member] GBP (£)	Mar. 31, 2014 Tilda [Member] USD ($)	Mar. 31, 2014 Tilda [Member] GBP (£)	Mar. 31, 2015 Tilda [Member]	Jan. 13, 2014 Tilda [Member] USD ($)	Dec. 31, 2014 Trade Names [Member] USD ($)	Dec. 31, 2014 Customer Relationships [Member] USD ($)	Dec. 31, 2014 Trade Names [Member] USD ($)
Business Acquisition [Line Items]
Goodwill	$ 1,093,589	[1]		$ 1,093,589	[1]		$ 1,134,368	[1]			$ 9,333		$ 28,998					$ 175,283
Business Acquisition, Percentage of Voting Interests Acquired											51.30%
Business Acquisition, Pro Forma Revenue	606,088		612,280	1,138,098		1,150,852
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	41,976			41,976
Finite-lived Intangible Assets Acquired																							6,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																						12 years	13 years 2 months
Indefinite-lived Intangible Assets Acquired																						11,000		110,087
Payments to Acquire Businesses, Net of Cash Acquired				17,935		(481)	177,147
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares									462,856				267,488	267,488				3,292,346	3,292,346	266,984
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned							159,521				19,690				11,168						148,353
Equity Method Investment, Ownership Percentage												48.70%
Other Payments to Acquire Businesses													0			15,114	10,000	32,958	20,000
Business Combination, Contingent Consideration, Liability							32,958
Business Acquisition, Cost of Acquired Entity, Cash Paid									20,310					50,807				126,340
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax	42,079		47,514	70,431		80,359
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Diluted	$ 0		$ 0.47	$ 0		$ 0.79
Investments and joint ventures	6,572			6,572			36,511					30,740
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value									36,074
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee				$ 5,334		$ 0				$ 5,334

[1] The total carrying value of goodwill for all periods in the table above is reflected net of $42,029 of accumulated impairment charges recorded during fiscal 2009 which relate to the Company’s United Kingdom and Europe operating segments.